The second insulation layer 112 may be disposed on the first insulation layer 111 on the first pad 121 and the second pad 122. The second insulation layer 112 may partially cover the first pad 121 and the second pad 122. The second insulation layer 112 may be formed of an inorganic insulation material such as silicon oxide, silicon nitride, silicon oxynitride, etc. or an organic insulation material, and may have a single layer or a multi-layered structure.

The first contact hole CH1 and the second contact hole CH2 respectively exposing the first pad 121 and the second pad 122 may be formed in the second insulation layer 112. For example, the first contact hole CH1 may expose a central portion of an upper surface of the first pad 121, and the second contact hole CH2 may expose a central portion of an upper surface of the second pad 122.

The protective film 150 may be disposed to be spaced apart from the first pad 121 and the second pad 122 with the substrate 110 disposed therebetween. For example, the protective film 150 may be disposed on a lower surface of the substrate 110. The protective film 150 may absorb impact from outside to prevent the display device from being damaged. The protective film 150 may be formed of material including air such as cushion, sponge, etc. to absorb impact. For example, the protective film 150 may include polyethylene terephthalate (PET), etc.